Aligning gauge for thread rolling dies



AyJ' COUTU ALIGNING GAUGE FOR THREAD ROLLING DIES 2 SHEETS-SHEET 1 FiledAug. 15, 1949 a m w INVENTOIR.

BY I. 3 01.

y 22, 1952 A. J. cou'ru 2,603,879

ALIGNING GAUGE FOR THREAD ROLLING DIES Filed Aug. 15. 1949 2SHEETS-SHEET 2 Fig.6.

G as

I N VEN TOR. vfm'ed 07001119 Patented July 22, 1952 UNITED "STATESPATENT o ncs h ALIGNINQ oAucnggginn p a .l A I L Alfred Joachim Coutu,Detroit} Application August 15, 1949, Serial No. 110,336

isstationary and the other of which is movable tOlI'Oll a'thread on ascrew blank or the like disposed between'the dies. In order that thepor-' tion of the thread rolled by either die shall in allrespects'match and form an identical continuation of the portionof thethread rolled by the other die, it is necessary that the-dies shall'beinitially set on the machine on longitudinal center parallel to eachother; that'the dies shall beileveled relative to each other to bothtouch the same plane'throughout their length; and that the dies shallbeset the proper distance apart to suit the diameter of the screw blankor other object upon which athread is to be rolled.

The present invention therefore has as its ob jects to'provide a machinewherein the foregoing adjustments of the dies may be readily madeaccurately, and wherein a gage will be provided for insertion betweenthe dies while the adjustment thereof is being made for determining andlimitingsaid adjustments.

Other and incidental objects of the invention will appear during thecourse of the following description; and in the drawings:

"Fig'ureil is a perspective view showing a portion of'a-machineembodying my improvements for adjusting the diesthereof.

'Figure 2 'isan end view showing my improved gagein position between thedies.

- Figure 3 is a detail vertical section showing the lateral adjustmentfor the stationary die holder.

Figure 4 is a detail vertical section showing a typical levelingadjustment for themovable'die;

Figure 5 is a detail plan view of the gage and Figure 6 is a detailelevation of the assembly of Figure 4 but without the stationary die.

Fi ure 7 is a detail elevation of the movable die. lFigure-8 is a detailperspective view of the gage. In'the drawings, I have shown only suchportions of a thread rolling machine as are necessary to anunderstanding of the present improvements, The body of the machine isindicated at Ill, the stationary die'rest at II, and the reciprocatingram at l2. overhanging the ram is a guide plate l3 therefor.

The rest II is provided with an angle seat l4 havinga flat horizontalbottom wall l5, and a fiat vertical back wall l6.- Mounted upon thebottom .wall- 15 near the forward end thereof is a pilot 3 Claims. (01.33 -185) stop stud IT, and adjustable on said stud is sia" horizontalstop screw l8.

Resting within the seat I4 is a dieholderlB. for the stationary die.This holder is formed, as seen in Figure 3 of the drawings, with spacedvertical slots 20, and extending freely :through said:

slots are bolts 2| securing the holder against the bottom wall it:of-the' seat. Provision is thus made whereby, as will presently appear,the holder may be adjusted laterally toward or awayfrom the path ofthe-movable die, andextending through the back wall I6 of the se'atltoengage the holder "are spaced bolts 22 for adjusting said holderlaterally; Spaced stop bolts 23 are also. provided and-areadjustablethrough the ba'ck wall [6 of the seat l4 toabut the holder l9and binditinsetposition- I Formed in the stationary die holder l9 is' anangle seat 24, and removably mounted at the rear end of said seat is aclamping p1ate'25 secured by a stud bolt 26. The holder I9 is furtherequipped with a removabletop clamp 21 securedbyastud-bolt Z8. I flResting in the seat 24 of the'holder I9 is a stationary die29-l'imitedjendwise-by-the plate 2-5' which binds against the rear endof said die, while the die is held down by the clamp 21 which f bindsagainst the upper edge of the die. The die will thus be rigidly securedupon the die holder; The movable die is indicated at 30.- The mountingof this die'willnow'be described. Formed in-the forward end of theram i2is an angle seat 3| inwhich 'thedie 3|) removably 'rests, and bindingagainst the forward end-of the' die is a clamping plate 32 secured by astud bolt-33." A top clamp 34 is also provided for the die and issecured by a stud bolt 35 tobind against theupper edge of the die forholding it down.

Employed in conjunction withthe movable die 30 are end and centeradjustments for either rais ing or lowering the die in the seat 3|, orleveling the die longitudinallys As said adjustments are alike,- adescription of onewill sufiice for all, and in this'connection referenceis particularly made 7, to Figure 4 r the drawings. T 4

Slidable .ina suitable bore in the rain 12 is? a vertical tail pin 36which extends through the j bottom wall or theseat. a l to confront the'flo edge of the die 30, and, if so desired, a suitable: shim may beemployed betweensaid pin and the die; slidable in a connectingtransverse'bor in.

39 coacting with said pin, while a removable plug 40 is provided at theforward end of the bore which receives the pin 31 so that the pin 31 maybe installed or removed. The three pins 36, 31, and 38 are beveled tocoact with each other so that, as will be seen, the plug 39 may beadjusted for either raising the pin 36 or permitting it to drop .7

As seen in Figure 1 of the drawings, -one.othe pins 36 is arranged neareach end of the seat 3| of the ram [2, while a third pin 36 is disposedmidway between the other two. Thus, as will now be understood, theplugs3'9' may be adjusted 1 for raising or lowering the movable die 30to the level of the stationary die 29. "Likewise; the plugs 39 may beadjusted for either raisingor; lowering either end of the die 3|independently of the other end thereof and thus leveling said dielongitudinally to the exact level of the stationary (1182295 At thispoint in the descriptionltherelativeadjustment or the two dies. 29 ,and--39. may-appropriately-be noted; As previously described, the,stationary'-die..2-9- is adjustable toward and away, from the path ofthe movable die 30, Thus, the dief 29rn1ay ".be positioned to suit thediame er-oi thescrew blankor' other object to be disposed ,betweenthe-dies. The movable die 3 0, as also previously: described, may eraised, lowered, or tilted relative to :the stationary die to match the4 corresponding position, ofithe stationary die.

-It'is now to be observed, as .shownin-Figure-d, thatthe; stationarydie2,9v is shorter; than the movablefidie'30. Furthermore, itis 1 b noted,asrbrou ht out inFi ure .7. that each-0f. e; dies is provided throughoutthe areas, of, both side; facesf thereof; with suitable threads orteeth. Thus, the diesmaybe reversed, edge for edge.

In-conjunction with the dies 2,9; and 30, and.the;adlustmentstherefor.as previously described, Iip ovideia gagerforinitia y sett nsithe dies-g As seen in detail in Figure 8 of,the ;.drawings, the; ga e includes. a oblong metal;block;4.1v of uniform widthand thickn ss the; l k; in o arwidth t or espond w t th w dth. iithe ies129 and; re.spectiv.e1y- Ati tsisndportions, hebloc s provided at eachde; h reoi with. threaded; areas 2. d the threads of these, areas areadantaitov match and .in erfitmthtm threads on he s de-fac s .oithedies;Be w en, h thre ded: areas. a h S de', l lock 11 5. a smo th- .inter date sur ace 43 and he hi kn ss, :or h block betw enthe suriaces 3,is. hei dex of the diameter, c ea a ceci theohiect; upon whicha thread is toberolled. In other rds, b ockse erent hic1sn sses will rte-pro: vided,andthe thickness of any given blocls will, s a l be e p a ned, d trminethe spitting-1hr:- ween he di s 2 9 an d.3:0.-

Farmed. in e-e se loc v ci omi hey neiz Adin d es e eg areP s. mhradedse h, is r t Q I P P e h na einelqfqaisd near the ends of the indexsurfaces 43, and ,fa shioned to be removably screwed; into; either: pairQof soglgets are knurled fingerti ASLbymeanspf b f h s: "i 'yjbe' ent dma 1 1a? 1 am. po's pn idl T111 51 Di sTm yT' eif n talll d,

8 her d g jrimf m .sel c velmnemock: m y QYerseid' dge -dr dseiw uiltheiins tudinal adjustmentoffthe dies; When thelg'age -disposed[between said. dies ahd of a thlcknes.

' the die 30.

, In use,.th e dies 29, and 30 are initially positionedin' theseats'24and 3|. when the movable 'die is, as seen in Figures 1 and 2 of thedrawings,

disposed-opposite the stationary die. The gage bloc}; 41 is thenpositioned between the dies, when the dies are adjusted so that thethreads ,on theexposed confronting faces of the dies will 5Qand Got the,drawings, said blochmamdiie to;

the pre n e, or the," sight; notches mien? said bljock, be conveniently.disposed to 'r'e'gis erilirielee vation with both of the dies, orlengthwise-with bblihni; the Jdies, so that the dies may, be Set in.rela 'tive lon itudinal adjustmentl'witli'resp the ,socalledstarting'linej of the; liiachiii'e, ior...i n,. otherwordsime naea iwm ntheworrji grippe between the dies; As wiIlIbeaIipreEiatQd clampingplates 25: and, providefor thiglon b10919 4,] is reversed, edge. foredge. sis-regard 'fthe, pgsitijohlthereof seen'in Figi'lrefs5 and 6.;,'Tthefsig i notCh es-41 'will, o fcou'rse, serve the. same pese asi justdescribed connequd fiwita. the notches 46; U

Having "thus described my invention, I claim;

1., A, gage, for use in settingLTcOnironting threaded dies ofscrewthi'ead rolling. machines,

including an obm ggag modgadaoteq' posed betweensaid}dies,andofiafthiolms orresponding to the. diameter .of thje'objetjtog he rolled between the dies for'fspae'ing'lthe a distanceequal to said diameter," n v being'o'f a length'cdrrespbndingtoQtheQefiecti" length of ,one of thefdies', andlthrea ds'gforzfid onthe "longi tudinal' side faoesfo'f thejblockia the. ends, thereof toprovide threaded areas/"the threads -o'f,which are adapted to.n'iatefwit that threads of the dies, the'fblo'ck,being provide "at" itsend corners with pairs 'of sight notches te m,

ing through the longitudinal edges. of the,bloc ;li and nee sew l sexted n a psl o l d es 6; air. f a no hes enemas through one longitudinaledge .of the block, being ebehth th ther pair of said not h s menhr ueh.e, p os n tu ina d e said blocl; and. the; gage, walls ,of each,v pairoi Qtchesbei gspaced apart a'distanqe orre spendin t t ffe tive ;1 n.th-.of ithaother;0t2 said. d eswherebythe block may e reversed edge;for edge.

2. eas for se inv etti g .co irontine hreaded i s of a crew-th eadollinscmach n r ncludin an. on sa eo k. adapte a *cbriespbndmg' tothe'diam'eter or the orientate rolled between the dies for spacing thedies'apart a distance equal to said diameter, said block being of alength corresponding to the effective length of one of the dies, threadsformed on the longitudinal side faces of the block at the ends thereofto provide threaded areas the threads of which are adapted to mate withthe threads of the dies, the block being provided at its end cornerswith pairs of sight notches opening through the longitudinal edges ofthe block and having gage walls extending at an angle to said edges, thepair of notches opening through one ,longitudinaledge of the block beingdeeper than the other pair of notches opening through the oppositelongitudinal edge of the block and the gage walls of each pair ofnotches being spaced i adapted to be disposed between said dies and ofuniform efiective thickness at its end portions for spacing the diesapart a distance corresponding to the diameter of the object to berolled between the dies, the block having parallel longitudinal edgesand being of a width corresponding to the width of the dies as well asof a length corresponding to the effective length of the stationary diewhereby the dies may be leveledlongitudinally with respect to the blockby leveling corresponding longitudinal edges of the dies with acorresponding longitudinal edge of the block while the block maybecentered longitudinally with respect to the stationary die byregistering the ends of the blockwith the effective end edges I of thestationary die, the block being provided at corresponding end cornersthereof with sight notches having corresponding gage walls extending atan angle to the adjacent longitudinal edge of the block and spaced aparta distance equal to the effective length of the movable die whereby themovable die may be centered longitudinally with respect to the block andthe stationary die by registering the effective end edges of the movabledie with said gagewalls, and threads formed on the longitudinal sidefaces of the block at the end portions thereof. and adapted to matewith.

the threads on the confronting faces of the dies when the dies areleveled longitudinally with the block.

ALFRED JOACHIM COUTU.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 219,073 Croft Sept. 2, 18791,524,327 Wayne Jan. 2'7, 1925' 1,500,112 Heller Sept. 14, 19262,339,699 Husband Jan. 18, 1944 2,341,284 Payne Feb.-8, 1944 25331378VVeinthal et a1. Dec. 23, 1947 7 OTHER REFERENCES Publ.: Taft-PeirceHandbook, 1940 p. 83.

